Rekensommen met eraf tot 100

Erafsommen
1.
85
–
0
=
2.
65
–
35
=
3.
20
–
20
=
4.
10
–
10
=
5.
15
–
5
=
6.
65
–
30
=
7.
90
–
40
=
8.
10
–
10
=
9.
20
–
0
=
10.
25
–
25
=
11.
100
–
80
=
12.
90
–
10
=
13.
20
–
20
=
14.
15
–
10
=
15.
75
–
5
=
16.
30
–
5
=
17.
70
–
45
=
18.
60
–
30
=
19.
90
–
70
=
20.
25
–
25
=
21.
75
–
0
=
22.
35
–
20
=
23.
60
–
30
=
24.
80
–
5
=
25.
100
–
40
=
26.
45
–
40
=
27.
55
–
30
=
28.
15
–
0
=
29.
40
–
35
=
30.
60
–
35
=
31.
30
–
0
=
32.
80
–
50
=
33.
20
–
10
=
34.
30
–
10
=
35.
15
–
15
=
36.
85
–
50
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
85
–
0
=
85
2.
65
–
35
=
30
3.
20
–
20
=
0
4.
10
–
10
=
0
5.
15
–
5
=
10
6.
65
–
30
=
35
7.
90
–
40
=
50
8.
10
–
10
=
0
9.
20
–
0
=
20
10.
25
–
25
=
0
11.
100
–
80
=
20
12.
90
–
10
=
80
13.
20
–
20
=
0
14.
15
–
10
=
5
15.
75
–
5
=
70
16.
30
–
5
=
25
17.
70
–
45
=
25
18.
60
–
30
=
30
19.
90
–
70
=
20
20.
25
–
25
=
0
21.
75
–
0
=
75
22.
35
–
20
=
15
23.
60
–
30
=
30
24.
80
–
5
=
75
25.
100
–
40
=
60
26.
45
–
40
=
5
27.
55
–
30
=
25
28.
15
–
0
=
15
29.
40
–
35
=
5
30.
60
–
35
=
25
31.
30
–
0
=
30
32.
80
–
50
=
30
33.
20
–
10
=
10
34.
30
–
10
=
20
35.
15
–
15
=
0
36.
85
–
50
=
35
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Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen